Polythiophenes bearing electron??withdrawing groups in the side chain and their application to bulk heterojunction solar cells

…, Y Tanaka, K Morino, A Sudo, T Okauchi…

Index: Lee, Kwang-Hoi; Lee, Ho-Jin; Kuramoto, Kouji; Tanaka, Yohei; Morino, Kazuhide; Sudo, Atsushi; Okauchi, Tatsuo; Tsuge, Akihito; Endo, Takeshi Journal of Polymer Science, Part A: Polymer Chemistry, 2011 , vol. 49, # 1 p. 234 - 241

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Citation Number: 4

Abstract

Abstract Soluble polythiophenes bearing strong electron withdrawing groups, dicyanoethenyl [[BOND] CH [DOUBLE BOND] C (CN) 2](PTDCN) and cyano- methoxycarbonylethenyl [[BOND] CH [DOUBLE BOND] C (CO 2 Me) CN](PTCNME), in the side chains have been prepared. Optical band gaps calculated from onset absorption were 1.70 eV and 1.73 eV for PTDCN and PTCNME, respectively. Highest occupied molecular ...